Grape plant named ‘G1-6819’

ABSTRACT

A new and distinct variety of Grapevine, designated ‘G1-6819’, characterized by late ripening, medium growth, with fairly good production; attractive, elongate berry shape, natural loose bunch and large berry size; holds well in cold storage and transportation; good resistance to rotting.

Botanical classification/cultivar denomination: Vitis sp. cultivar ‘G1-6819’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct variety of Grapevine, botanically known as Vitis sp., and hereinafter referred to by the name ‘G1-6819’.

‘G1-6819’ was bred by cross pollination. The female parent was ‘Bellevue’ and the pollen parent was ‘Centennial Seedless’ (U.S. Plant Pat. No. 4,784). It has been asexually reproduced by tissue culture in South Africa. Observations made on ‘G1-6819’ since September 2003 have shown that the unique features of this new Grapevine are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘G1-6819’. All observations were made from specimens grown in Kern County, Calif., during September 2003. These characteristics in combination distinguish ‘G1-6819’ as a new and distinct Grapevine cultivar:

-   -   1. Very late ripening variety, typically ripening in September;     -   2. Medium growth variety, with fairly good production;     -   3. Nice attractive elongate berry shape, natural loose bunch and         large berry size;     -   4. Holds well in cold storage and transportation; good         resistance to rotting.

COMPARISON TO PARENT VARIETIES

The new variety differs from the female parent in the shape of the berry, with ‘G1-6819’ having a more elongated berry and ‘Bellevue’ having a more rounded berry.

The new variety differs from the male parent in color of the berry, with ‘Centennial Seedless’ have a more greenish berry with a tendency to discolor, while ‘G1-6819’ has a white creamy colored berry with no sensitivity to discoloration.

BRIEF DESCRIPTION OF ILLUSTRATIONS

The accompanying photographic illustrations show typical specimens of the new variety, in color as nearly true as it is reasonably possible to make in a color illustration of this character. Colors in the photograph may differ from the color values cited in the detailed botanical description below, which accurately describes the colors of the new Grapevine.

FIG. 1A comprises a close-up of bunches of ‘G1-6819’.

FIG. 1B comprises a close-up of the new grapevine.

DESCRIPTION OF THE NEW VARIETY

Referring now specifically to the new and distinct variety of Grapevine, the following is a detailed description of a three-year-old self-rooted vine of ‘G1-6819’ with color description where indicated by reference to The Royal Horticultural Society Colour Chart, except where common terms of color definition are employed.

The new variety of Grapevine as herein described may vary in slight detail due to climatic, soil and cultural conditions under which the variety may be grown, the present description being of the variety as grown at Kern County, Calif., between April and September of 2003.

-   Plant characteristic:     -   -   Form.—Upright with a moderate canopy.         -   Growth.—Moderate, vigorous growth, comparable to that of the             Thompson Seedless grape, with medium canes and medium trunk. -   Vegetative characteristics:     -   -   Vine.—Size — medium canopy with medium leaf size. Vigor —             moderate. Pruning — spur pruning is sufficient due to the             good fertility. Trunk — Diameter approximately 1¼ inches.             Bark — Normal smooth, grey-orange color near 165A.         -   Canes.—Form — Cross-section is round to elliptic; surface is             ribbed to straight. Length — from spur — average mature cane             9′-12′. Size — variety canes are fully mature at harvest             time, up to 80% along the cane the brownish color showing             fully maturity. Color — mature cane near 165B, grey orange             group, somewhat shiny with red/burgundy dots near 183C             grey-purple group. Width at center node — Cane with bunch —             ½ inch; Cane without bunch — ⅝ inch. Nodes (generally) —             standard node, round smooth and standard look with no             deformation. No prostrate hairs and no hairs. Width at             center internodes — 1 cane with bunch — ⅜ inch; 2. cane             without bunch — 7/16 inch. Internodes length — Cane with             bunch — 4½ inches; Cane without bunch — 5¼ inches.         -   Tendrils.—In the early stage, the spring tendrils are large             and upright, at maturity the tendril break off at the             splitting point; very few tendrils remain on the mature             cane, three or more. Length — categorize as short — 3½ inch             to the break split point and 3½ inches of curlicue, total of             7 inches for mature leaves, for green and young tendril,             third from the top the length is 2½ inches to the break             split point and 2½ inches of curlicue. Average Thickness — ⅜             inches. Location — mainly from the center to the top of the             shoot. Leafing — no leaves grow on the tendrils. Color —             mature tendrils color is grey-orange near 166C; green             tendril color is yellow-green near 145A. Form — splitting             into two laterals equally. Texture — straight and firm up to             splitting point, splits to two equal laterals.         -   Foliage.—Density (average number of leaves about each             cluster) — up to 28 leaves. The foliate of this particular             variety unlike other common varieties is light due to large             distance between nodes and medium leaf size. Color of             immature leaf — upper side — green-yellow green near 146C.             Color of mature leaf — upper side is green group near 139A;             bottom side is green group color 137C. Petioles — average             length, about 123 mm (shorter than main vein of the leaf);             surface texture, smooth, with hairs (both erect and             prostrate) absent or very sparse; anthocyanin coloration is             very weak to weak. Color of petioles — light green on bright             yellow background at the bottom of the petiole has small             strips and/or purple dots. The petiole main color is green             group color near 144A and reddish strips/or dots of red             purple group color near 61B. Color of veins — bottom —             yellow-green group near 145B; upper — yellow-green group             near 145A. Texture of leaf surface — the leaf texture is             smooth and shiny on the immature leaves; the leaf texture is             smooth on both the under side and the upper side of the             mature leaf, with hairs absent or very sparse. Average             length of immature leaf — 4 inches. Average length of mature             leaf — 5½ inches. Average width of immature leaf — 3¾             inches. Average width of mature leaf — 8 inches. Overall             “shape” of leaf — serrated and rounded. Description of the             leaf edge — serrated margin with two indentations             approximately ⅜ inch to ½ inch in depth.         -   Blooming/flowers.—Stamens are taller than ovaries which make             the flower self fertile; the position of the first flowering             node is four and the number of inflorescences is, on             average, 1.6 per shoot; the flower is butterfly shaped with             creamy color, near 10D. Date of first bloom — Around April             20 in the south end of the San Joaquin Valley. Date of last             bloom — Around May 5 in the south end of the San Joaquin             Valley. Color and size of pedicel — light yellow/green, near             145B; pedicel average length is ⅛ inch. Color and size of             Stamen — Yellow cream, near 5C; Stamen average length is             about ⅛ inch.         -   Fruit cluster.—The bunch in general has conical shape, bunch             is large, in general the bunch is semi loose. Average             length, 10-12 inches; average width, 6-7¾ inches; thick             strong main stem with no abscission. Point stem color at             maturity on mature canes is yellow-green group near 146C.             Ripening time — end of August through early September in the             south end of the San Joaquin valley. Point stem color at             maturity on mature canes — yellow-green group near 146C.             Peduncle color at maturity — yellow-green group near 149D, 1             inch long and 3/16-¼ inch thick. Berry size — very uniform             in the bunch and from bunch to bunch. Use — for fresh             consumption. Keeping Quality — Good for five weeks at 33° F.             Disease and pest susceptibility — Susceptible to powdery and             downy mildews, although not evaluated for specific disease             susceptibility; standard spraying programmer is followed in             evaluation blocks to prevent disease and pest break-outs.         -   Harvest time/maturity.—First week of September through mid             September. Average number of clusters per cane: 1.5. General             description of the berry — elliptic shape, with a round             cross-section, medium bloom, slightly firm, with neutral             flavor. The berries are well attached to the cap. The             variety has very little shatter and berries separate easily             from the pedicel. Average size of the berry (no Gibberelic             acid) — length approximately 24.9 mm, width approximately             18.4 mm. Average size of the berry (with 10 ppm Gibberelic             acid) — length approximately 30.1 mm, width approximately             21.0 mm. Average berry weight of untreated vine without             Gibberelic acid — 4.5 gr. Average bunch weight (no             Gibberelic acid) — approximately 18 ounces. Average bunch             weight (with 10 ppm Gibberelic acid) — approximately 34             ounces. Average brix (no Gibberelic acid) — approximately             17-18. Average brix (with 10 ppm Gibberelic acid) —             approximately 15-16. Set of the berry — average natural             shatter. Skin of berry — semi shiny smooth surface, slightly             tougher than Thompson Seedless; completely resistant to             discoloration or brown browsing, somewhat sensitive to             cracking (between about 5% to 7%). Skin thickness — skin             thickness — fruit thickness slightly thicker than Thompson             Seedless. Color of skin — creamy green color — yellow-green             group near 146C. Color of pulp — clear white crystal clear.             Texture of berry pulp — meaty from one side and juicy from             other side. Presence of seeds — no seed trace. 

1. A new and distinct variety of Vitis sp. plant, identified as ‘G1-6819’, substantially as shown and described. 